Offshore support vessels provide material transportation and protection for offshore oil exploration and development. The particularity of their operations determines that they are different from other cargo ships, and they can not copy the experience of other cargo ships in terms of their own oil consumption. A new set of fuel-saving measures must be explored according to its operating characteristics. In this paper, by analyzing the offshore support vessel in different conditions, the factors that influence the vessel's oil consumption under different operation modes with the control of vessel turn over the port, vessel speed management, berthing and guarding management techniques, we seek for the most fuel-efficient running status of offshore support vessels with different power and modes. Besides, we find out the fuel-saving space of offshore support vessels, provide guidance on the operation of the vessels, inspect it through long-term data tracking, and acquire the controllable factors. Finally, feasible offshore support vessel oil-saving measures were developed.

The practical application shows that through the implementation of the above technical measures, the oil consumption of the vessels is effectively controlled, and the effect of cost reduction and efficiency increase is obvious, and considerable economic benefits are obtained. It can be used as the technical means of offshore support vessels which can be popularized for reference.